The printer's cable automatic retraction structure

Abstract

This invention belongs to the field of printer technology, and particularly relates to an automatic cable retraction structure for printers. It includes: a fixed plate with a through groove; a roller on the back of the fixed plate above the through groove; limit grooves on both sides of the roller; a limit plate rotatably mounted within the limit grooves; a rotating column fixedly mounted on one side of the limit plate; one end of the rotating column penetrating the limit groove and having a stop plate and a stop post; two limit rings symmetrically arranged on the roller; several storage slots on the circumferential wall of the roller between the two limit rings; rubber strips fixedly mounted within the storage slots; and an elastic component located on the fixed plate. This invention uses a compression spring and rollers to make cable retraction smoother, and uses elastic force to recover the cable, reducing damage to the cable and achieving automatic cable retraction. This solves the problems of cable breakage and jamming of the moving structure caused by the cable's inability to move with the lifting structure.

Description

Technical Field

[0001] This invention belongs to the field of printer technology, and in particular relates to an automatic retraction structure for printer ribbon cables. Background Technology

[0002] A printer's ribbon cable typically refers to a flexible cable used to connect various internal components of the printer (such as the print head, sensors, and control board). The ribbon cable primarily functions to transmit electrical signals or power, and is a crucial component for the normal operation of the printer. Signal transmission: The ribbon cable transmits signals from the printer's mainboard (control board) to other components (such as stepper motors, sensors, and heating elements), ensuring that all printer operations can be performed correctly. Power supply: It provides power to the printer's various electronic components, ensuring that each part functions properly.

[0003] Currently, printers with lifting and sliding structures lack automatic cable retraction mechanisms. The cable can only be pulled out by the lifting structure, but the cable cannot be retracted in time.

[0004] The printer lacks an automatic ribbon cable retraction mechanism, preventing the ribbon cable from moving with the lifting mechanism. This leads to cable breakage and batch-wide functional problems, resulting in customer complaints and negatively impacting the company. Users need to slide the lens up and down to take photos and print; if the ribbon cable doesn't retract in time, it can jam the lifting mechanism, rendering the printer unusable and providing a poor user experience. Therefore, we propose an automatic ribbon cable retraction mechanism for the printer. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic cable retraction structure for printers to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides an automatic cable retraction structure for a printer, comprising:

[0007] A fixed plate is provided with a through groove. A roller is provided on the back of the fixed plate and above the through groove. Limit grooves are provided on both sides of the roller. A limit plate is rotatably installed in the limit groove. A rotating column is fixedly installed on one side of the limit plate. One end of the rotating column passes through the limit groove and is provided with a baffle and a baffle.

[0008] Two limiting rings are symmetrically arranged on the roller. Several storage slots are opened on the circumferential wall of the roller between the two limiting rings. Rubber strips are fixedly installed in the storage slots.

[0009] An elastic component, located on a fixed plate, is used to control the two rotating columns to return to their original positions;

[0010] The ribbon cable is located on the back of the fixed plate, with one end of the ribbon cable passing through the top side of the roller and extending downward into the through groove.

[0011] In this technical solution, when the lifting mechanism in the printer moves one end of the ribbon cable, that end extends and then retracts with the movement. When the ribbon cable extends, the compression spring is compressed and stretched downwards. When the ribbon cable needs to retract, the compression spring contracts and pulls the roller to retract the ribbon cable, allowing for smooth extension and retraction of the ribbon cable. This avoids the problem of ribbon cable breakage and solves the problem of printers without an automatic ribbon cable retraction mechanism, where the ribbon cable cannot move with the lifting mechanism, easily breaks, and causes batch functional problems, resulting in customer complaints and negative impacts on the company. Users need to slide the lens up and down to take photos and print; if the ribbon cable does not retract in time during this process, the lifting mechanism may become stuck, preventing normal use and providing a poor user experience.

[0012] In the above technical solution, further, the width of the ribbon cable is less than the length of the storage slot, and the ribbon cable is located between two limiting rings, and the length of the through slot is greater than the width of the ribbon cable.

[0013] In this technical solution, it is ensured that when the lifting mechanism in the printer moves one end of the ribbon cable, the ribbon cable will not sway significantly on the roller, and is also limited by two limit rings, thereby improving the stability of the ribbon cable movement.

[0014] In the above technical solution, the elastic component further includes:

[0015] Two rings are respectively sleeved on two rotating columns. The rings are located between the baffle and the baffle. The rings are connected to the second ring by a compression spring, and the third ring is sleeved on the second ring.

[0016] Two rings four are fixedly installed on two rings three respectively. A ring groove is opened in the inner wall of the ring four. A ring five is rotatably installed in the ring groove. A cylinder fixed to the fixing plate is sleeved inside the ring five.

[0017] In this technical solution, the ribbon cable passes through a roller, and a compression spring pulls the roller to automatically retract the ribbon cable. When using the printer, the user needs to move the lifting mechanism; the movement of the lifting mechanism requires the movement of the ribbon cable, thus extending or retracting it. Figure 1The printer uses a roller mechanism to drive the ribbon cable movement, reducing damage to the cable. One end of the compression spring is fixed to the mounting plate via rings two, three, and four and a cylinder, while the other end is connected to a rotating column via ring one. The rotating column connects to the roller, and the ribbon cable passes through the roller. When the printer's lifting mechanism moves, it causes one end of the ribbon cable to extend and retract. When the ribbon cable extends, the compression spring is compressed and stretched downwards. When the ribbon cable needs to retract, the compression spring contracts and pulls the roller to retract the ribbon cable, allowing for smooth extension and retraction and preventing cable breakage.

[0018] In the above technical solution, furthermore, ring one, compression spring and ring two are integrally formed structures, and ring four and ring three are integrally formed structures.

[0019] In this technical solution, the structural stability of ring one, the compression spring, and ring two is ensured, as well as the structural stability of ring four and ring three.

[0020] In the above technical solution, the annular groove and the fifth ring are of equal size, and the fifth ring and the cylinder are integrally formed.

[0021] In this technical solution, when the whole device is running, with the cooperation of the annular groove and the fifth ring, the fourth ring can rotate slightly on the cylinder, which avoids serious wear and improves the service life of the whole device.

[0022] In the above technical solution, the limiting disc, rotating column, baffle and baffle are integrally formed structures, and the roller and limiting ring are integrally formed structures.

[0023] In this technical solution, the structural stability of the limiting plate, rotating column, baffle plate and baffle column is ensured, as well as the structural stability of the roller and limiting ring.

[0024] In the above technical solution, the limiting groove has a T-shaped cross-section, and the rotating column is rotatably connected to the limiting groove.

[0025] In this technical solution, with the cooperation of the limiting groove, the rotating column, and the limiting plate, the roller can rotate between the two rotating columns, avoiding damage to the ribbon cable by the roller. In addition, the rubber strip has a certain elasticity, which can further reduce the damage to the ribbon cable and prevent the ribbon cable from breaking.

[0026] In the above technical solution, further, the plurality of storage slots are arranged in a ring with equal spacing.

[0027] In this technical solution, it is ensured that the rubber strips in several storage slots can all abut against the ribbon cable, reducing damage to the ribbon cable.

[0028] Furthermore, the above technical solution also includes:

[0029] Two through holes are respectively opened on two stop posts;

[0030] Two L-shaped rods are symmetrically fixedly installed on the back of the fixing plate, and the top of each L-shaped rod passes through two through holes and is fixedly installed with a baffle plate.

[0031] In this technical solution, when the entire roller moves up and down, it also drives the limiting plate, rotating column, baffle plate and baffle to move up and down together. The baffle moves up and down with the L-shaped rod, which can ensure the structural stability of the baffle and thus prevent the roller from wobbling back and forth or left and right, ensuring that the whole device can operate normally.

[0032] In the above technical solution, the L-shaped rod is slidably connected to the through hole, and the diameter of the baffle is larger than the diameter of the through hole.

[0033] In this technical solution, it is ensured that the stop post can slide normally up and down on the L-shaped rod, so as to prevent the stop post from falling off the top of the L-shaped rod.

[0034] The beneficial effects of this invention are:

[0035] 1. This printer features an automatic cable retraction mechanism. The cable passes through rollers, and a compression spring pulls the rollers, thus automatically retracting the cable. Users need to move the lifting mechanism to operate the printer; this movement of the lifting mechanism requires the cable to extend or retract. Figure 1 The printer uses a roller mechanism to drive the ribbon cable movement, reducing damage to the cable. One end of the compression spring is fixed to the mounting plate via rings two, three, and four and a cylinder, while the other end is connected to a rotating column via ring one. The rotating column connects to the roller, and the ribbon cable passes through the roller. When the printer's lifting mechanism moves, it causes one end of the ribbon cable to extend and retract. When the ribbon cable extends, the compression spring is compressed and stretched downwards. When the ribbon cable needs to retract, the compression spring contracts and pulls the roller to retract the ribbon cable, allowing for smooth extension and retraction and preventing cable breakage.

[0036] 2. The printer's automatic cable retraction mechanism uses a compression spring and rollers to make the cable retraction smoother, and uses elastic force to retract the cable, reducing damage to the cable.

[0037] 3. The printer features an automatic cable retraction mechanism, which automatically retracts the cable, solving the problems of cable breakage and jamming of the moving structure caused by the cable failing to move with the lifting mechanism. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the regional structure of the roller in this invention;

[0040] Figure 3 This is a schematic diagram of a partial exploded structure in this invention;

[0041] Figure 4 This is a cross-sectional view of the stop post in this invention.

[0042] The marks in the figure are:

[0043] 1. Fixing plate; 11. Through groove; 12. L-shaped rod; 13. Baffle plate; 2. Roller; 21. Limiting ring; 22. Storage groove; 23. Limiting groove; 3. Rubber strip; 4. Limiting plate; 41. Rotating column; 42. Baffle plate; 43. Baffle post; 44. Through hole; 5. Ring 1; 51. Compression spring; 52. Ring 2; 6. Ring 3; 7. Ring 4; 71. Ring groove; 8. Cylinder; 82. Ring 5; 9. Cable. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0045] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0046] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0047] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0048] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0049] Example 1:

[0050] Please see Figure 1-4 As shown in the figure, this embodiment provides an automatic cable retraction structure for a printer, including:

[0051] A fixed plate 1 is provided with a through groove 11. A roller 2 is provided on the back of the fixed plate 1 and above the through groove 11. Limit grooves 23 are provided on both sides of the roller 2. A limit plate 4 is rotatably installed in the limit groove 23. A rotating column 41 is fixedly installed on one side of the limit plate 4. One end of the rotating column 41 passes through the limit groove 23 and is provided with a baffle 42 and a baffle 43.

[0052] Two limiting rings 21 are symmetrically arranged on the roller 2. Several storage slots 22 are opened on the circumferential wall of the roller 2 between the two limiting rings 21. Rubber strips 3 are fixedly installed in the storage slots 22.

[0053] An elastic component is located on the fixed plate 1 and is used to control the two rotating columns 41 to return to their original positions.

[0054] The ribbon cable 9 is located on the back of the fixed plate 1, and one end of the ribbon cable 9 passes through the top side of the roller 2 and extends downward into the through groove 11.

[0055] As can be seen in this embodiment, when the lifting structure in the printer moves one end of the ribbon cable 9, the ribbon cable 9 extends and then retracts with the movement. When the ribbon cable 9 extends, the compression spring 51 is squeezed and stretched downwards. When the ribbon cable 9 needs to retract, the compression spring 51 contracts and pulls the roller 2 to drive the ribbon cable 9 to retract, so that the ribbon cable 9 can extend and retract smoothly, avoiding the problem of the ribbon cable 9 breaking. This solves the problem that if there is no automatic retraction structure for the ribbon cable 9 in the printer, the ribbon cable 9 cannot move with the lifting structure, the ribbon cable 9 is easy to break, causing batch functional problems in the product, resulting in customer complaints and negative impact on the company. When users need to slide the lens up and down to take pictures and print, if the ribbon cable 9 does not retract in time during the sliding process, it may cause the lifting structure to jam, resulting in the inability to use normally and bringing a bad user experience.

[0056] Example 2:

[0057] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions of the above embodiments, it also has the following technical features: the width of the ribbon cable 9 is less than the length of the storage slot 22, and the ribbon cable 9 is located between two limiting rings 21. The length of the through slot 11 is greater than the width of the ribbon cable 9.

[0058] As can be seen from this embodiment, when the lifting structure in the printer moves one end of the ribbon cable 9, the ribbon cable 9 will not shake significantly on the roller 2, and it is also limited by two limit rings 21, which improves the stability of the ribbon cable 9 during movement.

[0059] Example 3:

[0060] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the elastic component includes:

[0061] Two rings 5 ​​are respectively sleeved on two rotating columns 41. The ring 5 is located between the baffle 42 and the baffle 43. The ring 5 is connected to the second ring 52 through the compression spring 51, and the third ring 6 is sleeved on the second ring 52.

[0062] Two rings 4 7 are fixedly installed on two rings 3 6 respectively. A ring groove 71 is opened in the inner wall of the ring 4 7. A ring 5 82 is rotatably installed in the ring groove 71. A cylinder 8 fixed to the fixing plate 1 is sleeved inside the ring 5 82.

[0063] As can be seen in this embodiment, the ribbon cable 9 passes through the roller 2, and the compression spring 51 pulls the roller 2 to achieve automatic retraction of the ribbon cable 9. When the user uses the printer, they need to move the lifting mechanism. When the lifting mechanism moves, it needs to move the ribbon cable 9, thus requiring the ribbon cable 9 to extend or retract. Figure 1 The movement of the ribbon cable 9 is driven by roller 2, which reduces damage to the ribbon cable 9. One end of the compression spring 51 is fixed to the fixing plate 1 through the cooperation of ring 2 52, ring 3 6, ring 4 7 and cylinder 8, and the other end is connected to the rotating column 41 through ring 1 5. The rotating column 41 is connected to the roller 2, and the ribbon cable 9 passes through the roller 2. When the lifting mechanism in the printer moves, it drives one end of the ribbon cable 9 to extend and then retract. When the ribbon cable 9 extends, the compression spring 51 is squeezed and stretched downward. When the ribbon cable 9 needs to retract, the compression spring 51 will contract and pull the roller 2 to drive the ribbon cable 9 to retract. This allows the ribbon cable 9 to extend and retract smoothly and avoids the problem of the ribbon cable 9 breaking.

[0064] Example 4:

[0065] This embodiment provides an automatic cable retraction structure for a printer. In addition to the technical solutions of the above embodiments, it also has the following technical features: Ring 1 5, compression spring 51 and Ring 2 52 are integrally formed structures, and Ring 4 7 and Ring 3 6 are integrally formed structures.

[0066] As can be seen from this embodiment, the structural stability of ring 5, compression spring 51 and ring 52 is ensured, as well as the structural stability of ring 7 and ring 6.

[0067] Example 5:

[0068] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions of the above embodiments, it also has the following technical features: the dimensions of the annular groove 71 and the five-ring 82 are equal, and the five-ring 82 and the cylinder 8 are integrally formed.

[0069] As can be seen from this embodiment, when the whole device is running, with the cooperation of the annular groove 71 and the five rings 82, the four rings 7 can rotate slightly on the cylinder 8, avoiding serious wear and improving the service life of the whole device.

[0070] Example 6:

[0071] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions of the above embodiments, it also has the following technical features: the limiting plate 4, the rotating column 41, the baffle plate 42 and the baffle column 43 are integrally formed structures, and the roller 2 and the limiting ring 21 are integrally formed structures.

[0072] As can be seen from this embodiment, the structural stability of the limiting plate 4, rotating column 41, baffle plate 42 and baffle column 43 is ensured, as well as the structural stability of the roller 2 and limiting ring 21.

[0073] Example 7:

[0074] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions of the above embodiments, it also has the following technical features: the cross-section of the limiting groove 23 is T-shaped, and the rotating column 41 is rotatably connected to the limiting groove 23.

[0075] As can be seen from this embodiment, with the cooperation of the limiting groove 23, the rotating column 41 and the limiting plate 4, the roller 2 can rotate between the two rotating columns 41, avoiding damage to the ribbon cable 9 caused by the roller 2. In addition, the rubber strip 3 has a certain elasticity, which can further reduce the damage to the ribbon cable 9 and prevent the ribbon cable 9 from breaking.

[0076] Example 8:

[0077] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions of the above embodiments, it also has the following technical features: a plurality of storage slots 22 are arranged in a ring with equal spacing.

[0078] As can be seen from this embodiment, it ensures that the rubber strips 3 in several storage slots 22 can all abut against the ribbon cable 9, reducing damage to the ribbon cable 9.

[0079] Example 9:

[0080] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions described in the above embodiments, it also has the following technical features:

[0081] Two through holes 44 are respectively opened on two stop posts 43;

[0082] Two L-shaped rods 12 are symmetrically fixedly installed on the back of the fixing plate 1, and the top ends of the two L-shaped rods 12 pass through two through holes 44 respectively and are fixedly installed with baffles 13.

[0083] As can be seen from this embodiment, when the entire roller 2 moves up and down, it will also drive the limiting plate 4, rotating column 41, baffle plate 42 and baffle column 43 to move up and down together. The baffle column 43 moves up and down on the L-shaped rod 12, which can ensure the structural stability of the baffle column 43, and thus prevent the roller 2 from shaking back and forth or left and right, ensuring that the whole device can operate normally.

[0084] Example 10:

[0085] This embodiment provides an automatic retraction structure for the printer's ribbon cable. In addition to the technical solutions of the above embodiments, it also has the following technical features: the L-shaped rod 12 is slidably connected to the through hole 44, and the diameter of the baffle 13 is larger than the diameter of the through hole 44.

[0086] As can be seen from this embodiment, it ensures that the stop post 43 can slide normally up and down on the L-shaped rod 12, and prevents the stop post 43 from falling off the top of the L-shaped rod 12.

[0087] Working principle: The ribbon cable 9 passes through the roller 2, and the compression spring 51 pulls the roller 2, thus automatically retracting the ribbon cable 9. When the user uses the printer, they need to move the lifting mechanism. The movement of the lifting mechanism requires the movement of the ribbon cable 9, which then needs to extend or retract. Figure 1 The movement of the ribbon cable 9 is driven by roller 2, which reduces damage to the ribbon cable 9. One end of the compression spring 51 is fixed to the fixing plate 1 through the cooperation of ring 2 52, ring 3 6, ring 4 7 and cylinder 8, and the other end is connected to the rotating column 41 through ring 1 5. The rotating column 41 is connected to the roller 2, and the ribbon cable 9 passes through the roller 2. When the lifting mechanism in the printer moves, it drives one end of the ribbon cable 9 to extend and then retract. When the ribbon cable 9 extends, the compression spring 51 is squeezed and stretched downward. When the ribbon cable 9 needs to retract, the compression spring 51 will contract and pull the roller 2 to drive the ribbon cable 9 to retract. This allows the ribbon cable 9 to extend and retract smoothly and avoids the problem of the ribbon cable 9 breaking.

[0088] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An automatic cable retraction structure for a printer, characterized in that, include: A fixed plate (1) is provided with a through groove (11). A roller (2) is provided on the back of the fixed plate (1) and above the through groove (11). A limit groove (23) is provided on both sides of the roller (2). A limit plate (4) is rotatably installed in the limit groove (23). A rotating column (41) is fixedly installed on one side of the limit plate (4). One end of the rotating column (41) passes through the limit groove (23) and is provided with a baffle (42) and a baffle (43). Two limiting rings (21) are symmetrically arranged on the roller (2). Several storage slots (22) are opened on the circumferential wall of the roller (2) between the two limiting rings (21). A rubber strip (3) is fixedly installed in the storage slot (22). An elastic component is located on a fixed plate (1) and is used to control the two rotating columns (41) to return to their original positions; The ribbon cable (9) is located on the back of the fixed plate (1), and one end of the ribbon cable (9) passes through the top side of the roller (2) and extends downward into the through groove (11); The elastic component includes: Two rings (5) are respectively sleeved on two rotating columns (41). The rings (5) are located between the baffle (42) and the baffle (43). The rings (5) are connected to the rings (52) by the compression spring (51), and the rings (52) are sleeved on the rings (6). Two rings four (7) are fixedly installed on two rings three (6) respectively. A ring groove (71) is provided in the inner wall of the ring four (7). A ring five (82) is rotatably installed in the ring groove (71). A cylinder (8) fixed to the fixing plate (1) is sleeved in the ring five (82).

2. The automatic cable retraction structure for a printer according to claim 1, characterized in that: The width of the ribbon cable (9) is less than the length of the storage slot (22), and the ribbon cable (9) is located between two limiting rings (21). The length of the through slot (11) is greater than the width of the ribbon cable (9).

3. The automatic cable retraction structure for a printer according to claim 2, characterized in that: The first ring (5), the compression spring (51) and the second ring (52) are integrally formed structures, and the fourth ring (7) and the third ring (6) are integrally formed structures.

4. The automatic cable retraction structure for a printer according to claim 3, characterized in that: The annular groove (71) and the five rings (82) are of the same size, and the five rings (82) and the cylinder (8) are integrally formed.

5. The automatic cable retraction structure for a printer according to claim 1, characterized in that: The limiting disc (4), rotating column (41), baffle (42) and baffle (43) are integrally formed structures, and the roller (2) and limiting ring (21) are integrally formed structures.

6. The automatic cable retraction structure for a printer according to claim 1, characterized in that: The limiting groove (23) has a T-shaped cross section, and the rotating column (41) is rotatably connected to the limiting groove (23).

7. The automatic cable retraction structure for a printer according to claim 1, characterized in that: Several of the storage slots (22) are arranged in a ring with equal spacing.

8. The automatic cable retraction structure for a printer according to claim 1, characterized in that: Also includes: Two through holes (44) are respectively opened on two stop posts (43); Two L-shaped rods (12) are symmetrically fixed on the back of the fixing plate (1), and the top ends of the two L-shaped rods (12) pass through two through holes (44) respectively and are fixedly installed with baffles (13).

9. The automatic cable retraction structure for a printer according to claim 8, characterized in that: The L-shaped rod (12) is slidably connected to the through hole (44), and the diameter of the baffle (13) is larger than the diameter of the through hole (44).

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